------------[ cut here ]------------
WARNING: CPU: 0 PID: 5 at net/mptcp/protocol.c:764 mptcp_reset_timer+0x12a/0x160 net/mptcp/protocol.c:764
Modules linked in:
CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events mptcp_worker
RIP: 0010:mptcp_reset_timer+0x12a/0x160 net/mptcp/protocol.c:764
Code: e8 6b 16 3b fe e8 f6 25 bd f8 48 b8 00 00 00 00 00 fc ff df 48 c7 04 03 00 00 00 00 48 83 c4 40 5b 5d 41 5c c3 e8 d6 25 bd f8 <0f> 0b 41 bc 14 00 00 00 eb 98 e8 a7 1e 00 f9 e9 30 ff ff ff 48 c7
RSP: 0018:ffffc90000ca7bb0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 1ffff92000194f76 RCX: 0000000000000000
RDX: ffff888011920000 RSI: ffffffff88b5b07a RDI: 0000000000000003
RBP: ffff88802f0ac800 R08: 0000000000000000 R09: 0000000000000004
R10: ffffffff88b5b017 R11: 0000000000000007 R12: 0000000000000000
R13: 0000000000000004 R14: ffff8880369d8000 R15: ffff88802f0ad060
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000044 CR3: 0000000032d84000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 mptcp_worker+0xeb8/0x14d0 net/mptcp/protocol.c:2312
 process_one_work+0x98d/0x15f0 kernel/workqueue.c:2275
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421
 kthread+0x3b1/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296